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Venous gas emboli are involved in post-dive macro, but not microvascular dysfunction
21 janvier 2017, LAMBRECHTS, Kate; BALESTRA, Costantino; Theron, Michaël; Henckes, Anne; Galinat, Hubert; Mignant, Fanny; Belhomme, Marc; Pontier, Jean-Michel; Guerrero, François,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Purpose: Previous studies have shown vascular dysfunction of main conductance arteries and microvessels after diving. We aim to evaluate the impact of bubble formation on vascular function and haemostasis. To achieve this, we used a vibration preconditioning to influence bubble levels without changing any other parameters linked to the dive.
Methods: Twentty-six divers were randomly assigned to ...
Vascular Function Recovery Following Saturation Diving
17 octobre 2022, Imbert, Jean-Pierre; Egi, Sahli-Murat; BALESTRA, Costantino,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Background and Objectives: Saturation diving is a technique used in commercial diving. Decompression sickness (DCS) was the main concern of saturation safety, but procedures have evolved over the last 50 years and DCS has become a rare event. New needs have evolved to evaluate the diving and decompression stress to improve the flexibility of the operations (minimum interval between dives, optimal ...
Varying Oxygen Partial Pressure Elicits Blood-Borne Microparticles Expressing Different Cell-Specific Proteins-Toward a Targeted Use of Oxygen?
17 juillet 2022, BALESTRA, Costantino; Arya, Awadhesh; Leveque, Clément; Virgili, Fabio; GERMONPRÉ, Peter; LAMBRECHTS, Kate; Lafere, Pierre; Thom, Stephen,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Oxygen is a powerful trigger for cellular reactions, but there are few comparative investigations assessing the effects over a large range of partial pressures. We investigated a metabolic response to single exposures to either normobaric (10%, 15%, 30%, 100%) or hyperbaric (1.4 ATA, 2.5 ATA) oxygen. Forty-eight healthy subjects (32 males/16 females; age: 43.7 +/- 13.4 years, height: 172.7 +/- 10.07 ...
Variability in circulating gas emboli after a same scuba diving exposure
30 avril 2018, Papadopoulou, Virginie; Germonpré, Peter; Cosgrove, David; Eckersley, Robert; Dayton, Paul; Obeid, Georges; BOUTROS, Antoine; Tang, Meng-Txing; THEUNISSEN, Sigrid; BALESTRA, Costantino,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
PURPOSE: A reduction in ambient pressure or decompression from scuba diving can result in ultrasound-detectable venous gas emboli (VGE). These environmental exposures carry a risk of decompression sickness (DCS) which is mitigated by adherence to decompression schedules; however, bubbles are routinely observed for dives well within these limits and significant inter-personal variability in DCS risk ...
Ultrasound lung "comets" increase after breath-hold diving
23 octobre 2010, LAMBRECHTS, Kate; GERMONPRÉ, Peter; Charbel, Brian; Cialoni, Danilo; Musimu, Patrick; Sponsiello, Nicola; Marroni, Alessandro; Pastouret, Fredéric; BALESTRA, Costantino,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
The purpose of the study was to analyze the ultrasound lung comets (ULCs) variation, which are a sign of extra-vascular lung water. Forty-two healthy individuals performed breath-hold diving in different conditions: dynamic surface apnea; deep variable-weight apnea and shallow, face immersed without effort (static maximal and non-maximal). The number of ULCs was evaluated by means of an ultrasound ...
ULTRASONOGRAPHIC ASSESSMENT OF NECK MUSCULAR SIZE AND RANGE OF MOTION IN RUGBY PLAYERS
01 février 2018, HEMELRYCK, Walter; Calistri, Josselin; Papadopoulou, Virginie; THEUNISSEN, Sigrid; Dugardeyn, Christian; BALESTRA, Costantino,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Background: World Rugby Union laws are constantly evolving towards stringent injury-prevention, particularly for contested scrums, since front row players are most at risk of cervical spine injuries. Recently, some countries have also introduced tailored training programs and minimum performance requirements for playing in the front row. Nevertheless, these approaches lack an objective assessment ...
Ultrasonographic Assessment of Neck Muscular Size and Range of Motion in Rugby Players
28 février 2018, HEMELRYCK, Walter; Calistri, Josselin; Dugardeyn, Christian; BALESTRA, Costantino,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Background: World Rugby Union laws are constantly evolving towards stringent injury-prevention, particularly for contested scrums, since front row players are most at risk of cervical spine injuries. Recently, some countries have also introduced tailored training programs and minimum performance requirements for playing in the front row. Nevertheless, these approaches lack an objective assessment ...
The Normobaric Oxygen Paradox-Hyperoxic Hypoxic Paradox: A Novel Expedient Strategy in Hematopoiesis Clinical Issues
janvier 2023, Salvagno, Michele; Coppalini, Giacomo; Taccone, Fabio-Silvio; Strapazzon, Giacomo; Mrakic-Sposta, Simona; Rocco, Monica; Khalife, Maher; BALESTRA, Costantino,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Hypoxia, even at non-lethal levels, is one of the most stressful events for all aerobic organisms as it significantly affects a wide spectrum of physiological functions and energy production. Aerobic organisms activate countless molecular responses directed to respond at cellular, tissue, organ, and whole-body levels to cope with oxygen shortage allowing survival, including enhanced neo-angiogenesis ...
The effect of pre-dive ingestion of dark chocolate on endothelial function after a scuba dive
15 mars 2015, THEUNISSEN, Sigrid; BALESTRA, Costantino; BOUTROS, Antoine; De Bels, David; Guerrero, François; GERMONPRÉ, Peter,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Objective: The aim of the study was to observe the effects of dark chocolate on endothelial function after scuba diving.
Methods: Forty-two male scuba divers were divided into two groups: a control (n=21) and a chocolate group (n=21). They performed a 33-metres deep scuba-air dive for 20 minutes in a diving pool (Nemo 33, Brussels). Water temperature was 33⁰C. The chocolate group ingested 30 g ...
The effect of a passive stretch training protocol on performance during a drop jump in humans
30 mars 2013, Levenez, Morgan; THEUNISSEN, Sigrid; Bottero, Antoine; SNOECK, Thyl; Tinlot, Arnaud; BALESTRA, Costantino; Provyn, Steven,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Our study's aim is to show how a five-week stretch training protocol, based on passive stretching, can change muscle performance during a drop jump (stretch shortening cycle). METHODS: This study observes in 8 healthy subjects (four males and four females), the effect of a 5-week passive stretch training protocol on the stretch shortening cycle (SSC) during the performance of a drop jump, and identify ...